Printing-block gauge table



Nov. 24, 1925. l 1,562,752

D. F. FRASER PRINTING BLOCK GAUGE TABLE Nov. 24 1925. 1,562,752

D. F. FRASER PRINTING BLOCK GAUGE TABLE Filed April 4, 1925 5Sheets-Sheet 2 Nov. 24 1925. 1,562,752 A D. F. FRASER PRINTING BLOCKGAUGE TABLE Filed April 4, 1925 5 sheets-sheet s IVENTOR. A fg/MM W M@Nov. 24, 1925. 1,562,752

' D. F. FRASER PRINTING BLOCK GAUGE TABLE Filed April 4, 1925 5sheets-sheet 4 Nav. 24, 1925. A 1,562,152

D. F. FRASER PRINTING- BLOCK GAUGE TABLE' Filed April 4. 1925 5Sheets-Sheet 5 Il l) patented Nev. 24, 1.9225.

UNITED DONALD n. or Laiteasrrn, PENNSYLVANIA, Assrenen To anivrsfrnoneCORK eoicrANY, or Lancas'rnn, rnnnsrrivanrn, a cenronarron or Partnern-VANIA.

Application tiled April 4, w25..

To all Ir/ima t muy conce/ru:

Be it known that l, Domini)` F. Frissen, a citizen of the United States,residing at liancaster, county of Lancaster, and State 'of Pennsylvania,have invented a new and useful p p Gange Tables, of which the followingis a full, clear, and exact description.

The present invention relates to printing blocks such as are employed inthe n'ialing of printed linoleuni and siinilar Hoor covering and morelparticularly to nieans for truingl or leveling the printing surfacesthereof.

In the making of printed linoleuin the goods is run under a series ofvertically reciprocable printing blocks each adapted to print a portion.of the colnplete pattern in the desired color, Paint is applied to theprinting surfaces of these blocks and they are nioved into contactl withthe goods in tiined relation to the travel thereof under the blocks soas to n'iatch up the partial patterns to forni the complete pattern. Inorder that these printing blocks niay properly perforin their functions,it is not only necessary that all points on the printing surface of ablock be located in the saine plane so. that when the printing surfaceis brought into contact with the goods all. said points will contactwith the goods, but that the printino surfaces of the several blocks berelat ivcly adjusted so that their partial patterns will inat-ch upperfectly on the goods to forni the complete pattern.

llhe present invention provides a gauge table-assenibl y forfacilitatingl these adjustnients. The various blocks for forming acomplete pattern are successively supported in this table assembly andtheir printing surfaces leveled up with respect to a gauging surface,which is the surface of the table, and the printing surfaces adjustedlaterally and longitudinally so that their partial patterns will inatchup perfectly to forn'i the complete pattern. The table assembly has apattern screen associated therewith and adapted to be placed inoperative relation to the printing surface of eacl'i block to enablesuch surface to be laterally and lengitudiu-ally adjusted in order tocause its pailtial pattern to inatch up with the partial patterns of theprintingl surface of the other blocks in a inanner to be hereinafterdescribed in detail lVhen the painting-.blocks Improvement inPrinting-Block PRINTING-BLOCK GAUGE TABLE.

Serial No.` 20,774?.

have had their printing surfaces leveled up and adjusted, they requireonly slight a-d justinents when placed in the printing niachine in orderto canse their partial patterns to inatch upl on the goods.

A preferred embodiment of the invention is illustrated in theaccompanying drawings, wherein i Figure 'l is a front elevation of thetable assembly, showing a printing block supported therein and showingthe pattern screen in inoperative position;

Fi gure 2 is an end elevation of the structure shown in'Figure l,looking frein the right;

Figure 3 is ar fragmentary longitudinal vertical section of thestructure;

Figure 4C is a sectional plan view, partly broken away, of the upperportion of the printing block and the rotatable support therefor shownin Figure 3, the section being talien on the line IV-IV of Figure 3;

Figure 5 is a transverse sectional view, on a larger scale, of theprinting block;

Figure 6 is a plan view, and

Fig-ure 'l' is a side elevation, partly in section, of a sujiiportingbracket for one end of the printing block;

Figure 8 isa perspective view of one of the shiins for leveling up theprinting` surface of the block;

Figure 9, is a detail sectional View through one end of the printingblock and the supporting and adjusting nieans associated with one eudthereof;

Figure lO is a view looking at one end of the printing block, thesupporting and adjusting bracket heilig shown in dotted outline and insection;

plain horizontal. upper surface of which constitutes a gauging surfaceor a surface of reference. This table is supported at a convenientlocation by legs At the et.

posite ends of the table are brackets 4 and 5 each of which provides ahalf bearing for a rotor 6. The other half of each bearing is providedbya removable cap 7, these caps being bolted to the brackets and 5v,Each rotor has a sprocket 8 mounted thereon engaged by a sprocket chain9 which also engages a sprocket 10 on a hub 11. The hubs 11 are formedintegral with handles 12 mounted on the opposite ends of a shaft 13extending under the table 2. `With this construction both rotors areadapted to be turned simultaneously by means of either handle 12. Eachsprocket chain 9 is engaged by a roller 9 carried by an adjustablebracket 9b, whereby the slack in the sprocket chain can be taken up.

The rotors 6 are adapted to rotatably support a printing block 14 inorder to facilitate the various adjustments referred to above. Aprinting block such as illustrated comprises I-beams 15 which are heldin spaced relation by brackets 16 secured thereto by bolts 17..`Connected to these brackets are braces 18 which extend longitudinallybetween the I-beams and brace the entire block structure. Secured to thebase flanges of the I-beams 15 by clamps 19 and clamping screws 2O aretransversely extending castings 21. The cast ings 21 hold the printingelement 22, said printing element being secured thereto by screws 23passing through slots 24 in the castings and cooperating with lag screws25 in the printing element. The printing clement is a laminatedstructure formed of a plu `ality of layers of wood, the lower"- lnostone having the printing characters or types 26 formed on its surface.

Fastened to and extending between the I-beams 15 at each end of 'theblock is, a bracket 27. Each of these brackets is secured to the I-beamsby bolts 28 and 20, the bolts 28 extending through the webs of thebrackets and the webs of both I- beams and the bolts 29 extendingthrough flanges at the ends of the webs of the brackets and through thewebs of the I-beams. Each bracket has a horizontal flange 30 projectingoutwardly from the lower edge of its web portion, this horizontal flangehaving downwardly extending arms 31 ai its ends. A bearing bracket 32 or32,

'shown in Figures 12 and 13, is secured to the lower face of eachhorizontal flange 30 by a pair of pins 33, screw-threaded at theiropposite ends, screwed into the bearing bracket and extending throughslots 34 in the flange 30 and having nuts 35 and washers 36 cooperatingwith their screw-threaded upper ends. Shim-s 37 may, if desired, beinterposed between the washers 36 and the upper surfaces of the flanges30. Set screws 3S extend through the arms 31 and engage the sides of thebearing brackets 32 and 32", whereby the printing block can be laterallyadjusted with respect lo the bearing brackets by loosening the nuts andscrewing in one of the set screws 38 at the end of the printing blockand backing off the other set screws.

Each rotor 6 has a central opening 39 and a. horizontal flange #l0projecting inwardly from said opening. Mounted upon said flange andsecured thereto by a bolt ll is a supporting bracket 412, shown inFigures 6 and 7, having a yoke portion the arms of which are adapted tostraddle the sides of a depending portion la of the bracket 32 or thebracket 32a. A pin L15 having tapering ends extends through the arms ofthe yoke portion r3 and through bearings 1:6 slidably mounted inopenings in the depending portion 41. The ends of the pin l5 are taperedin order to facilitate its insertion and removal from the yoke -51-25-and the bearings L16. A screw 17 is mounted in the yoke portion a3 ofone of the brackets L12 and has an annular groove A1c in its inner endand a wrench engaging portion at its outer end. The bearing.v

block 32 has spaced arms 19 projecting Eiwardly from the dependingportion 1-1 and these arms have pinsI projecting from their inner facesand adapte-d to extend i mo .the annular groove -lS of the screw 41T.'lt will be apparent that with this construction the printing block canbe adjusted longitudinally while supported in the table assembly. Eachof the bearing blocks 32 and, 32 has a pin 51 projecting therefrom forcooperation with a crane hook to facilitate mounting the printing blockin thc table assembly and removing it therefrom and placing it in theprinting machine.

The method of truing up or leveling the printing surface of the printingblock will .now be described. Each rotor 6 has two diametricallyopposite holes therein adapted to receive the tapered end of a piu 53insertible in an opening in the bearing bracket. yThis pin has its outerend screw threaded and engaged by a nut 5t. it will be seen that bytightening the nut, the removal of the tapered pin is facilitated. 'lhetapered pins are adapted to hold the printing block with its printingsuritar:l either -facing downwardly and substantially parallel to thesurface of the table or facing upwardly for cooperation with the patternscreen, which will be hereinafter t escribed. lV hen the printing blockis mounted in he table assembly it is lirst held with its pri ntingsurface facing downwardly. The earing bracket Ll at one end of the tableis supported on cooperating wedges 55 and 56, one of which is shown inFigure 11. The upper wedge 55 has llanges 57 forming a. channel toreceive the bearing bracket a. Each wedge is provided with.longitudinal. slots face adjusted to match up with the partial patternof the first block, paint of a suitable color can be applied to itssurface and its partial pattern also printed on the pattern screen, inorder to facilitate the matching up of the partial pattern of the thirdprinting block with the partial patterns of the first and second blocks.This can also be repeated for the third block and each successive blockexcept the last block of the series, it obviously being unnecessary toprint the partial pattern of the last bloel on the pattern screen.However, if the complete pattern only consists of a relatively smallnumber of partial patterns it may not be necessary to print the partialpattern of any of the blocks on the pattern screen except that of thefirst block.

The printing machine has means engageable with the bearing brackets 32and 32 at the ends of the printing` blocks similar to the supportingbrackets 42. Then the blocks have been adjusted in the table assemblyand placed in the printing machine no lateral adjustments of theprinting bloclrs are necessary in order to make the partial patterns ofthe blocks match up perfectly on the goods. Some slight longitudinaladjustn'ients of the blocks may be necessary, but these are easily andquickly made and a relatively small amount of the goods has to be rununder the blocks in order to malte these adjustmentsi lVhile I haveillustrated and described a preferred embodiment of my invention, itwill be understood that the invention is not limited to its illustratedembodiment, but that it may be otherwise embodied within the scope ofthe appended claims without departing from the spirit of the invention.

I claim:

l. In means for truing and leveling the printing surfaces of printingblocks, a table having a gauging surface and having means engageablewith the opposite ends of a printing block for supporting said blockwith its printing surface 'facing and in spaced relation to the surfaceof said table and substantially parallel therewith, one of said meansbeing adjust-able whereby to enable one end of the printing surface ofthe block to be adjusted to the same distance from the surface of thetable as the other oud thereof, substantially as described.

2. In means for truing and leveling the printing surfaces of printingblocks, a table having a gauging surface, said table having rotatablemeans engageable lwith the opposite ends of a printing block forsupporting said bloeit with its printing surface either fac-.ing thesurface of the table or facing away from said surface, means for holdingsaid block in either of said positions, a pattern screen, means forsupporting` said pattern screen so that it may be moved into cooperativerelation with the printing surface of the block when said surface is inthe latter of said positions, and means at the opposite ends of thetable for adjusting the block laterally and longitudinally,substantially as described.

3. In means for truing and leveling the printing surfaces of printingblocks, a table having a horizontal gauging surface, said table havingrotatable means engageable with the opposite ends of a printing blockfor supporting said block above the table with its printing surfaceeither facing downwardly and substantially parallel with the surface ofthe table or facing upwardly, means for holding said table in either ofsaid positions, a pattern screen, means for supporting said patternscreen so that it may be moved into operative relation with the printingsurface of the block when said surface is faced upwardly and to have thepartial pattern of said block printed thereon, and means at the oppositeends of the table for adjusting the bloclt laterally and longitudinally,substantially as described.

s. In means for truing and leveling the printing surfaces 0f printingblocks, a table having a horizontal gauging surface, said table havingrotors at its opposite ends engageable with the opposite ends of aprinting block for supporting said block above the table with itsprinting surface either facing downwardly and substantially parallel tothe surface of said table or facing upwardly, means engage-able withsaid rotors for holding said table in either of said positions, bearingsfor said rotors, means for adjusting one of said bearings vertically, apattern screen, means for supporting said pattern screen so that it maybe moved into operative relation with the printing surface of the blockwhen said surface is faced upf'ardly, and means at the opposite ends ofthe table for adjusting the block laterally and longitudinally,substantially as described.

5. In means for truing and leveling the printing surfaces of printingblocks, a table having a horizontal gauging surface, said table havingrotors engageable with the opposite ends of a printing block forsupporting said block above the table with its printing surface eitherfacing downwardly and substantially parallel with the surface of said.table or facing upwardly and substantially parallel with the surface ofsaid table, means engageable with said rotors for holding said table ineither of said positions, means for sinuiltaneously operating both ofsaid rotors, a pattern screen, means for supporting said pattern screenso that it may be moved into operative relation with the printingsurface of the block when said surface is faced. upwardly, and means atthe opposite ends of the table for adjustmeente ing the block laterallyand longitudinally, substantially as described.

G. The Combination with a series or printing blocks each having bearing'brackets atl'aehed to its opposite ends, and means for adjusting thebleek laterally with respect to said. bearingl brackets, ot means fortruing and leveling the printing;` surfaces of said blocks, comprising'a table having a horizontal gauging` surface, said table havingrotatable means engageable with the bearing` brackets at the oppositeends of each printing block for supporting said block above the tablewith its printing surface either my hand.

DONALD F. FRASER.

